<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="../../js库/mock.js"></script>
    <script src="../../js库/vue.js"></script>
    <title>test

    </title>
    <style>
        #root {
            margin: 0 auto;
            width: 700px;
            height: 700px;
            background-color: palevioletred;
        }
        .box {
            width: 250px;
            height: 250px;
            background-color: blue;
            margin: 50px;
        }
    </style>
</head>

<body>
    <div id="root">
        <div class="box">你好世界</div>
    </div>
</body>
<script>
    new Vue({
        el: '#root',
        data() {
            return {
            }
        },
    })
</script>

</html>